Tangent-scale telescope for guns



No. 784,487. I PATENTEDMAR. '7, 1905.

G. PLGOBRZ & H. KORRODI., TANGENTSCALE TELESGOPE FORGUNS.

APPLICATION FILED JAN. 2B. 1903-.

No. 784,487. PATENTED MAR. 7,'1905. 0. P. GOBRZ & H. KORRQDI. TANGBNT SCALE TBLESGOPB FDR GUNS APPLIUATION ILED '.TN. 28. 1903.

2 SHEETS-SHEET 2.

A m ha No. 784,487. l

Patented March 7, 1905.

limitan Stains Fares@ Ottica.

CARL PAUL GOERZ, OF FRIEDENAU, ND HEINRICH KORRODI, OF EISEN-I ACH, GERMANY, ASSIGNORS TO THE FIRM OF OPTISCHE ANSTALT C. P. GOERZ AKTIENGESELLSCHAFT, OF FRIEDENAU, GERMANY.

TANeENT-SCALE TELESCOPE FCR GUNS SPECIFICATION forming part of Letters Patent No. 784,487, dated March 7. 1905.

i Application illed January 28, 1903. Serial No. 140,952. l

Tn (all zuil/mn it muy concern: I

Be it known that we, CARL PAUL GOERZ,

manufacturer, 01u45 and 46 Rheinstrasse, Frief IO With the known arrangement of pointing instruments on guns, irrespectivevof whether combined with the tangent-scale or mounted on other parts of the gun, we have t'he drawback that the telescopes, in spite of their being turnabl'e on a vertical axis, can only with dliliculty and in some cases not at all be ad- ,justed for auxiliary aims on theright or left or still less in the rear and compel the pointer to assume awkward and uncomfortable positions, the consequence of this being that the protection oi' the pointer by the shield is more orless illusory, and, moreover, the pointing ot' the piece of ordnance is delayed, as the pointer cannot as a rulel at one and the same time sight the target and turn the hand-wheels of the machine for pointing the gun, 4so that for this latter function another gunner is required. This d raw back will in all probability become all the more momentous and onerous, as the lield pieces of the future Vwill most likely be all provided with protecting-shields which will not allow of a sighting of auxiliary aims not lying directly in the tiring-line. The object of the present invention is to re- 3,5Y move this drawback with regard to the sighting of auxiliary aims on eithe'r'side of the lirin`g-line or in the rear and to allow the pointer a sighting of auxiliary aims without compelling him to leave his usual place at the gun which he occupies for a direct pointing of the gun-over notch'and bead. This object is attained b v provided the head of the tangent-l scale of the gun lwith a telescope having a revolving reiiectorfor receiving the rays` of lightfalling upon it. This revolving refiector arranged in front of the objective or in coinbination with. the objective has a sweep all 'y around the horizon and throwsl the raysinto a stationary part of the telescope-casing, whence they are conveyed .either directly through' an ocular to the perception of the pointer or more suitably'atter having passed through prisms which give them'the `desired direction.

The natural sigh ting or'observing direction beingjthe horizontal or nearly'horizontalthat is to say, the same direction as, that of the rays proceeding from the object on which the gun is to be laid-#it is 'advisable to place into the path of the rays reilected by the objective reflector aV second reflector which throws them back a second .time and in an essentially horizontal direction; but with this arrangement and a revoluble objective reflector the consequence would be that upright images could only be obtained if the objective reflector and the second reflector were in a .position parallel to each other, whereas in all other positions of the objective reflector inclined images would be the result.

obviate this drawback, it is advisable to use vtelescopes ittedY not only with a revolving objective rei-lector and a stationary ocular reflector, but such wherein there is inserted, moreover, into the path ofv the rays another reflecting system, (or a prism with one reliecting and at least two refracting faces,) of which I at least one reflecting-face.ispivoted on an axis parallel to the direction of the rays in the space behind the reector.

ing turning of the vrevolving reflector (or reilectors) inserted into the path oi' the rays a righting of the images can be effected. In order to obtain upright images at once and in any position of the objective reector, telescopes are used in which the prism righting the images is coupled to the objective retlector in suchl a way that it participates in the revolutions of the objective reflector, its circular velocity being, however, only half that vof theobjective reflector.

The new tangent-scale telescope is illustrated in the accompanying drawings, wherein similar numbers refer to similar parts throughout the several views.`

Figures l to 4 show a form of construction By a correspond-'- in which there is inserted. a prism with two` refracting-and one reflecting face into the' path of the rays coming from the revolving reflector. Figs. 5 and 6 show a form of construction yofthe tangent-scale telescope, in

which two revolving reflectors formed by two reilecting-faces of a prism are inserted into the path of the rays.. Figs. 7 andSillustrate a special mode of vfixing the telescope to the pointing-arc, which arrangement permitsof .pointing either over notcleand bead or through the. telescope. v

The poin'tingfar'c carrying the telescope is designated inall the figures' withl. There` iectorA which receives the rays from the tar- 5 getfthatis to say, from a point to which the telescope' is leveled-is marked with 2.l The refiector. ,constitutes` a reiiecting@ facev of a.

. prism 3. Thejprism ,3 is fixed 'in' a rotary casing 4,. With regard to these ypartsall the'r forms of construction shown vin the drawings are-uni.form,.wherefore these parts have in all the drawings4 been marked withth@Jr Samj numbers..

: `1n:thefollc-)wing isgivenamoredetailed de# scription'of the different forms of construction.

.'-In the form: shownin'l Figsl to.4 there- .tatingpart4of5thecase vis .placed `like a cap f on thecasingl, proper, which latter serves in f its' turn as a guide for the. cap 4. `The right- 1 ing-prism, 'the objeotof which istol right the images, isvdesig-nated with 5.'Y This righting-r prism, which refracts-the rays on its faces 6.

`and 7 and 'reflects thernton. its face 8, isiixed t, arranged pivotally in the tubeshaped case 10. The-socket9 carries. further, v atits upper-end the objective'll. `The socket in a socket 9.

. 9 is coupledV with the cap 4,- for which purpose the cap is provided-with a spur-gear 12,- which engages a pinion 13, the axle of which pinion 13 carries,.moreover, a second gear, 14, which engages a spur-gear 15 of thesocket 9. The

transmitting .ratio ot'l the coupling parts be'-4 Jv tween the cap 4and the socket 9'is of a kind that the socket 9 on the cap 4 being turned turns with halt' the circular Avelocity of thelatter. To allow of a very accurate adjustment of the re- Hector 2, a worm 16 has been provided which engages Vthe thread17`of cap 4. On' the axle Aof the worm 16 arearr'anged at opposite ends an adjusting-button 18and divisions of a cir-- cle 19. The latter, with the aid of an index 20, vallows of reading evenlthe smallest turnings of the worm.' The Worm 16 can Vbe put out otv geafwith the thread 17, so' asnotto prevent 'thev rapid or rough adjustment ofthe gun by la dire'ct turning of the cap 4. To this end the worm `pivots on a pin 21 and is held in gear only byja spring 22. To read the po- .sition on the cap 4 itself, a scale 23 is provided on the samewhich can be seen through an opening 24 in the wall of a cap 25, to which is allixed the prism-case 4. Between thep'r'ism 5 and the ocular 26 a-tectiform prism 27 is fixed "in the case. Y

n `The connection. between the telescope and guide, as' illustrated in Fig. 4. 1 y

TheV path of the rays of vlight through the 4telescope is as follows: The rays coming from `They thereupon pass through the objective 11, are then refr-acted on face 610i' prism 5, and thrown onr the reflectingface'Stoic` prism 5. The. rays reiiected by face 8 are again refracted on leaving theprism on face 7, so that they leave the prism y5 f in a direction yparallel to their line of incidence. The rays leaving the Vthe o cular26.

`In -cons'equence of the described coupling the reflector 2, and the socket 9, carrying the position of the reflector 2.

vFigsy andthe rays; are reflected twice on which is 4here marked with .28, without being,

:simple rectangular prism 3.1 isused here,

the rotating prism 28. Also with this form of construction' provision has. been made for a Vcoupling betweenl rthe case 4, carrying the rotating. reflector l2, and lthepart 32, turning on -a pivot Thiscoupling 'is effected by a gear 34 of the rotating prism-'casing 4, which engages a pinion 35, firmly united with a conical wheel 36. The latter gears with another same as thatgotA other tangent-scale telescopes, with the di'iferenc'e' that the pointer doesnot require in order tosight the different points of the horizon to bring the telescope or the axis of the ocular into the direction of the the reflector in such away that rays from the 'target 4are thrown into the telescope, so that the image'of `the point be visiblein the ocular.

Iny Figs.l 7 and 8 there is illustrated a combination of the telescope with .the pointingarc, which allows at'willa sighting over notch the pointing-arc 1 isleffected by a Idovetaill the target are retracted on the reector 2. l

prism 5r are righted in their path through the i i tectiform prism 27 and nally passthrough' prism 5, uprightimages are obtained in every the. faces 29 'and 30 of the rotatingf` prism, 'f

f however, retracted on entering or leaving the prism. Instead' of lthe tectif'ormprism 27 a' turned.- The rpath of v`the rays of light is inposi'tion' of the refiector 2 is'fread ofi' a sealebetween the head ofthe telescope. 4, carrying f With the form of construction shown in throi'ighwhich the rays pass before coming to IOO conical wheel. 37, turning on the pivot 33.

IIO

-in Figs.,1-4, and 5 and 6 is, in principle, the

respective points. All that is needed is to turn and bead or through the telescope. In this case there is fixed at the top end of the pointing-arc a socket into which the telescope canA be placed and fixed by a nut 41. For this arrangement a support l2 for the laterally-movable notcht has been provided on the pointing-arc l in the usual manner.' The telescope would in this case not allow of a pointing over the notch along the whole length of the isupport 42 if the same were firmly united with the pointing-arc. This defect is removed by the described arrangement of its being detachableL The pointingtelescope itself can in other respects be constructed the same way as the forms of construction described.

What we claim as our invention, and desireA to secure by Letters Patent of the'United States, isv l 1. In combination with a tangent-scale for guns, a telescopic attachment mounted thereon, the same comprising a pivotally-arranged telescope, and means for mounting the same onsaid scale, said telescope being provided with a reflecting means adapted to sweep the horizon in the rotation of the telescope and reflect the rays coming from any point of the horizon always in the same direction, so that lthe same can be seen by the pointer without his changing his position, substantially as set forth.

Q. ,In combination with a tangent-scale for guns, a telescopic attachment mounted thereon, the same comprising a pivotally-arranged telescope, and means for mounting the same on said scale, said telescope being provided with a reflecting means adapted to sweep the horizon in therotation of the telescope and reflect the rays coming from any point of the horizon always inthe same direction, so that f same can be seen by the pointer without his changing his position, and an adjusting device for showing the position of the telescope and reflector at any time, substantially as set forth.

3. In combination with a tangent-scale telescope for guns, a pivotally-arranged reflector sweeping, in its rotation, the horizon, a'further system of reflectors inserted into the path of the rays coming from the rotating reflector,` the -latter system of reflectors possessing at least one reflecting-face pivoted on its axis,

said a'xis being parallel to the direction of the axial ray in the air-space traversed by it immediately before its falling upon the reflecting-face, substantially as set forth.

4. .In combination with a tangent-scale telescope for guns a pivotally-arranged reector sweeping in its rotation the horizon, an index v ing at least one re'flecting-facepivotal on an axis, said axis being parallel to the direction 4of the axial ray in the air-space traversed by it immediately before its falling upon the reflecting-face, substantially as set forth.

5. In combination with a tangentscaletelescope for guns, a pivo'tally-arranged reflector sweeping, in its rotation, the horizon'and re- `fleeting the rays coming from any point of the horizon always in the same-direction, a rotating prism inserted into the path of the rays coming from the rotating reflector, in such a manner that the axial ray, after being reflected at least once, leaves the prism in a direction parallel to its direction of incidence, the axis on which the prism turns being' parallel -to the direction of the incidence and the emergency of the axial ray, and the prism being coupled with the rotating reflector in such a manner that, on the latter being rotated, said prism will be likewise and automatically rotated, substantially as set forth.

6. 1n combination with a tangent-scale telescope for guns a pivotally-arranged reflector, sweeping in its rotation the horizon and reflecting the rays coming from any point of the horizon always in the same direction, an indexA 4 vdevice showing at any time the position of the reflector, a rotating prism inserted into the 'path of the rays coming from the rotating re- Y flector,in such a manner that the axial ray,after 'being reflected at least once, leaves the prism in a direction'parallel to its direction of ineidence, the axis on which the prism turns being parallel to the direction of the incidence and the emergency of the axial ray and the'Y prism being coupled with the rotating reflector in such a mannelthat, on the latter being rotated, said prism be likewise and automatically rotated with half the circular velocity the reflector, substantially as set forth. l

7. In combination with a tangent-scale for guns a telescope with a piVotally-arranged reflector sweeping in its rotation the horizon, a bore in the pointing-arc of the gun into which the telescope can be placed and from which it can be easily removed and a support on the pointing-arc for holding an adjustable notch, substantially as and for the purpose set forth.

8. 'Ihe combination, with a tangent-scale for guns, of reflecting means mounted therelon to sweep the' horizon and reflect the rays coming from any point of the horizon always in the same direction, so that the same can be seen by the pointer without changing his position.

Signed this 3d day of January, 1903, at Berlin.

CARL PAUL GOERZ.

Witnesses:

"WOLDEMAR HAUPT, HENRY HAsri-in. Signed this 9th day of January, 1903, at Berne.

HEINRICH KORRODI. Witnesses:

EDUARD VON VVALDKmon, FRITZ NAseELI.

IOO 

